Antiskid device



Feb. 12, 1952 A. KURTZ 2,585,795

ANTISKID DEVICE Filed July 28, 1949 IN VEN TOR.

A 7 TORNEX Patented Feb. 12, 1952 UNITED STATES PATENT OFFICE,

Application July 28, 1949, Serial No. 107,229

3 Claims.

This invention relates to means for increasing the traction of the wheels of automotive devices. More particularly the invention pertains to anti-skid devices for use on the wheels of automobiles, motor trucks and the like. The invention relates further to means of this order which may be easily and quickly attached to a wheel and which may be readly removed therefrom without the employment of tools.

It is an object of the invention to provide a simple, effective and inexpensive anti-skid device which is adjustable for use on wheels equipped with tires of various diameters. It is also an object to provide an anti-skid device which may be quickly placed upon a wheel and looked snugly upon the tire without the use of tools.

Further objects and the advantages of the invention will be brought out as this specification is read in conjunction with the drawings which form a part thereof and in which:

Figure 1 is a side elevation of a part of an automotive device showing a wheel to which is attached an anti-skid unit constructed according to one embodiment of my invention.

Figure 2 is a cross section of a tire and rim showing my anti-skid locked thereon.

Figure 3 is a top view of my device shown in position on a wheel.

Figure 4 is a side view of a portion of a wheel and showing my device secured thereto.

Figure 5 is a fragmentary elevation similar to Figure 2, showing a lever in raised position for releasing the clamping spring tension of the device.

In the drawing 2 is a portion of an automotive device, a driving wheel 3 of which is provided with a rim 4 upon which is carried a suitable resilient tire 5. Positioned on the rim 4 and carried thereby are pins 6 and I. These pins serve to retain the anti-skid device on the wheel, the springs 8 and 9 carried thereby being provided with eyes l and H for detachable engage-.

ment with said pins. Spring 9 is secured at [2 to the leaf member l3 which in turn is secured. by means of the bolt Hi to the body element l5. This body element I is provided with two, spaced apart traction heads [6 and I1. Retained between the said heads, by means of eye 32 of a release lever 3| is a spring l9 and the opposite end of this spring I9 is connected to the eye on the opposite leaf member 2|, with the result that' normally, both leaf members are retained adjacent to the wall of tire 5 while the spring I9 is under tension. The operating lever 3| is-pivoted upon transverse pin I8 riding in transverse 2 groove 33 in leaf member I 3 so that it may be swung outward as best seen in- Figure 5, releasing spring i=9 by moving eye 32 and thus slacking tension of this spring. When the lever 31 is swung inward again against leaf l3, the spring is, of course again tightened and the same tends to hold the lever in its tensed closed position as shown in Figures 2, 3 and 4. The body member 23 is provided with two, spaced apart traction heads 25 and 26 between which spring I9 passes. All of the said friction heads or traction heads I 6, I1, 25 and 26, preferably have their upper surfaces toothed, as shown at 21 to increase their traction effect and, at their inner portions, as indicated at 28 and 29, these heads are suitably formed to make firm frictional contact with the tire tread. From the above it will be seen that all that is necessary, when it is desired to use the invention is to open the lever element 3|, by raising same angularly upward about the pivot pin 18 in groove 33, slip the device over the tire and connect the springs 8 and 9 on to the pins 6 and I, and then press the lever element 3| back to its normal position adjacent .to or against leaf [3, whereby the spring I9 is placed under tension to tightly clamp the device in place upon the wheel. The leaf member l3 may be provided with several, spaced holes 30, for the bolts I2 and 14, so that smaller or larger tires may be accommodated.

Accordingly, it will be seen that I provide a simple, inexpensive anti-skid device which may be easily and quickly put in position on a wheel and manually looked, under spring tension, so as to stay firmly in place during the operation of the car, the said device being easily and quickly removable by a simple manually operable lever action.

Having illustrated and described one embodyment of my invention it will be understood that structural modifications and changes may be made without departing from the spirit of the invention as set forth in the following claims,

I claim:

1. In an anti-skid device, the combination of a motor car wheel having a resilient tire, a rim on which the tire is mounted, means on said rim for receiving and retaining an anti-skid unit, an anti-skid unit having a set of traction heads coupled by'a spring, means for attaching the said unit to said receiving and retaining means and a manually operable lever on said unit for placing said spring under tension for removably locking the anti-skid unit on said wheel.

2. In an anti-skid device, the combination of a motor car wheel comprising a rim upon which is carried a resilient tire, an anti-skid unit having a pair of traction heads coupled by a spring, spring means for attaching the unit to the wheel and a manually operable lever for placing the said springs under tension for causing the unit to hug the resilient tire.

3. In an anti-skid device for motor car wheels, the combination of aewheel having a rim and a resilient tiremounted thereon, an anthskid unit includingtwo elements coupled by a spring, means on said rim for holding the unit in place on said wheel and means on said unit for placing the spring under tension for retaining the unit" snugly against the face of the resilient tire.

A W. KURTZ;

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 938,990 Eastwood Nov. 2, 1909 1,405,672 Davis Feb. '7, 1922- 1,941,935 Erickson Jan. 2, 1934 2,464,564 Dunner Mar. v15, 1949 

